How the heck does this thing work????
This video shows a taken apart vacuum control valve for a OM603 Mercedes diesel with an automatic transmission. This valve's job is to simulate a gas engine's manifold vacuum. My valve was passing about 10" of vacuum at no load. Adding a spare valve body spring gets it to 15". I put it in the car and it shifts much better now at light throttle. I need to set the modulator just a touch firmer now!
Here's a wiki article with pictures of the valve: www.peachparts.com/Wikka/OM603...
I created this video with the KZitem Video Editor ( / editor )
Негізгі бет Ғылым және технология Mercedes OM60x VCV Vacuum Valve Modification
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